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Age range: 14-16
Duration: 0-29 mins
  • Mathematics

Mathematics behind revolving doors

Use the circumference formula and estimation to design an efficient revolving door

Revolving doors are energy efficient as they prevent drafts (via acting as an airlock), thus preventing increases in the heating or cooling required for the building. At the same time, revolving doors allow large numbers of people to pass in and out. But this is not always the case...

Activity info, teachers' notes and curriculum links

An engaging activity in which students will examine the design of revolving doors for maximum efficiency both in terms of reducing space and minimising heat loss.

The activity sheet includes teacher notes, guidance, useful web links, and links (where appropriate) to the national curriculum in each of the four devolved UK nations; England, Northern Ireland, Scotland and Wales.

Download the free activity sheet below!

All activity sheets and supporting resources are free to download, and all the documents are fully editable, so you can tailor them to your students' and your schools' needs.

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The related GeoGebra file for this activity can be viewed at the following link:

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